I was at the regional area and found that all of the petrol stations are closed by 9pm. and then I found 1 petrol station (Caltex) who would let you to fill up your petrol at their place, but they would charge you $20-$50 extra (according to the time, they charge more when its past midnight).
As it is Caltex, just wondering whether charging the extra $20-$50 is legal?
not sure about legality…but there is a 24x7 Caltex place near me (unmanned), and I've filled up there after 9pm before (was before midnight), and wasn't slugged
I'd imagine they'd have to make any surcharges etc very visibly clear, and if not, you may have a case